Mop wringer



' Nov. 20, 1928.

H. B. TARBOX 4 no? wamemx,

Filed Dec 9, 1927 Patented Nov. 20, 1928 UNITED STATES HUGH BOG-ART TARBOX, OF TORONTO, ONTARIO, CANADA.

MOP WRINGER.

Application filed December 9, 1927. Serial No. 238,789.

My invention relates to a mop wringer comprising a stationary, and a movable, presser board and a lever mechanism for actuating the movable presser board.

For an understanding of the invention reference is to be had to the following clescription and to the accompanying drawings, in which 2 V Fig. 1 is a perspective View of a mop wringer and the lever mechanism.

Fig. 2 is a perspective view of the lever mechanism shown in Fig. 1, and

Fig. 3 is a perspective View of the link.

Like numerals of reference refer to like parts throughout the specification and drawm s.

The lever mechanism comprises a plurality of arms or sets of arms, the number of which is governed by the movement of the cooperating parts, and in the present construction two sets of arms 3 and 4 are employed in the practical application of this lever mechanism for actuating the movable frame. Each palr of arms 3 and 4, as shown in the drawings, takes the form of a bell crank, these arms being united by an elbow 5, and the elbows 5 of the two sets being connected by a shaft 6. One set of arms is located at or near each end of the shaft and the angle formed by each arm of each set with the axis of the shaft is the same as the angle formed by the corresponding arm of the other set, so that similar movement will be simultaneously effected by the arms of the two sets and similar pressure will be simultaneously exerted by them on the movable frame.

When a hollow shaft is employed to connect the two sets of arms an axle 7 is entered through it and this axle is journalled in bearings 8 in the side plates 9 of the stationary frame and forms a fixed fulcrum for the rotation ofv the arms.

When a solid shaft 6 is employed to connect the two sets of arms, it is journalled in the bearings 8 and they likewise form a fixed fulcrum for the rotation of the arms.

As shown in the drawings the arm 3 is longer than, and during its forward rotation is in advance of, the arm 4 for imparting a quick forward motion to the movable frame during the initial step of the progressive movement. At the completion of the initial step the arm 3 expends 1ts effort and the arm 4 then comes into action and completes the progressive movement initiated by the arm 3. Co-acting with each set of arms is a link 10, one end of whichis pivoted at 11 to the presser board 19 of the movable frame, and the other end is free so that the link will automatically adapt itself to the arc travelled by the arms 3 and 4 as they rotate.

To maintain an automatic engaging and disengaging connection of the arms with the link each of the arms 3 and 4 is provided with a key 12 and 13 respectively and the arm engaging face of each link is provided with two curved recesses 14 and 15 spaced from one another to successively receive the keys 12 and 13. The recess 15 is at or near the free end of the link and the recess '14 is between the recess 15 and the pivot 11. During the rotation of the arms in a forward direction the key 12 enters the recess 14 and under the influence of the arm 3 causes the forward movement of the link 10, which by means of the pivotal connection 11 automatically adapts itself to the travel of the arm 3 until the key 13 enters the recess 15. The key 12 then recedes from the recess 14 and the key 13 under the influence ofthe arm 4 continues the movement of the link to the forward limit of travel, and remains in the recess 15 for the reverse rotation of the arms during which the arm 4 retracts the link until the key 12 re-enters the recess 14. The key 13 then recedes from the recess 15 and the arm 3 and key 12 continue the retraction until the link 10 reaches the reverse limit of travel.

The arms 3 and 4 are provided, as shown in the drawings, with a crank 16 for causing their forward and reverse motion and this crank may be attached to or form part of one set of arms or it may be fitted to the shaft or hub.

The mop wringer shown in Fig. 1 comprises a stationary frame consisting of a presser board 17 and downwardly extending forked side walls 9 for straddling a pail, and a movable frame consisting of an imperforate presser board 19, a floor board 20, and side walls 21 supporting the floor board. The lower ends of the side walls of the stationary and movable frames are formed with opposing hubs 22. Bolts 23 are entered through the hubs for pivotally connecting the movable frame, to the stationary frame and springs 24 bear respectively on the stationary and movable frames.

In the practical application of the invention as shown in Fig. 1, the movement of the crank 16, indicated by arrow, causes a corresponding rotation of the arms 3 and 4. The key 12 during this rotation enters the recess 14 and the power of the crank 16 is transmitted to the link 10 and movable frame which then travel in a forward direction, the link adjusting itself automatically to the are described by the travel of the arm, until the key 13 enters the recess 15. The key 12 then recedes from the recess 1% and the key 13 continues the movement of the link until the limit of travel is reached. This causes the movement of the link and divides it into two distinct steps of which the initial step is effected by the arm 3 and the final step by the arm 4B, the extent and force is expended, and its length is greater than the width of the slot so that the key during the intervening period will lie transversely across the slot and lock the arm and link together until the arm reaches the entering or withdrawing position.

Having thus fully described my invention,

what I claim as new and desire to secure by Letters Patent is:

1. A mop wringer comprising a stationary frame, a movable frame, and a lever mechanism composed. of a plurality of arms unitedly rotatable in clockwise or counterclockwise direction, a link interposed between the arms and the movable frame alternately engaged and released by each of the arms in succession as they rotate, and means for actuating the arms and imparting in one direction forward motion and pres sure to the link and through it to the movable frame, and, in the opposite direction, reverse motion and release of pressure.

2. A mop wringer comprising a stationary frame, a movable frame pivotally 'COIlllGCtGCl with the stationary frame, and a lever mechanism composed of a plurality of arms unitedly rotatable on a fixed fulcrum in clockwise or counterclockwise direction, a link pivotally connected with the movable frame alternately engaged and released by each of the arms in succession as they rotate and means for actuating the arms and im parting, in one direction forward motion and pressure to the link and through it to the movable frame, and, in the opposite direction, reverse motion and release of pres-v sure,

8. The hereinbefore described device ,as claimed in claim 1 in which each arm is provided witha projecting key, and the arm engaging face of the link is provided with a. recess for each arm into which the corresponding key enters and from which it recedes during the rotation of the arms.

HUGH B. TARBOX. 

